Weather History for Washington, MO

Change the Weather History Date:

Friday, September 20, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 67 °F 69 °F  
Max Temperature 77 °F 78 °F 96 °F (1940)
Min Temperature 57 °F 59 °F 40 °F (1875)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 11  
Since 1 July heating degree days 12  
Cooling Degree Days 2 5  
Month to date cooling degree days 164  
Year to date cooling degree days 1563  
Growing Degree Days 17 (Base 50)    
Moisture  
Dew Point 64 °F    
Average Humidity 90    
Maximum Humidity 100    
Minimum Humidity 64    
Precipitation  
Precipitation 0.45 in 0.11 in 1.40 in (1876)
Month to date precipitation 2.06  
Year to date precipitation 29.81  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2012)
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Since 1 September snowfall 0.0  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 0 mph (North)    
Max Wind Speed 0 mph    
Max Gust Speed -    
Visibility 9 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 20, 2013 Rise Set
Actual Time 6:50 AM CDT 7:03 PM CDT
Civil Twilight 6:23 AM CDT 7:30 PM CDT
Nautical Twilight 5:52 AM CDT 8:01 PM CDT
Astronomical Twilight 5:20 AM CDT 8:32 PM CDT
Moon 7:39 PM CDT (9/20) 8:03 AM CDT (9/20)
Length of Visible Light 13h 06m
Length of Day
12h 13m
Full, 98% of the Moon is Illuminated
Sep 20
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 77.0 °F 68.0 °F 74% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
12:35 AM 77.0 °F 68.0 °F 74% 29.92 in 10.0 mi Calm Calm - N/A   Overcast
12:55 AM 75.2 °F 68.0 °F 78% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
1:15 AM 75.2 °F 66.2 °F 73% 29.90 in 10.0 mi Calm Calm - N/A   Overcast
1:35 AM 73.4 °F 66.2 °F 78% 29.91 in 10.0 mi Calm Calm - N/A Thunderstorm Overcast
1:55 AM 73.4 °F 66.2 °F 78% 29.91 in 9.0 mi Calm Calm - N/A Rain , Thunderstorm Light Rain
2:15 AM 69.8 °F 68.0 °F 94% 29.93 in 3.0 mi Calm Calm - 0.14 in Rain , Thunderstorm Light Rain
2:35 AM 68.0 °F 68.0 °F 100% 29.92 in 2.5 mi Calm Calm - 0.43 in Rain Light Rain
2:55 AM 68.0 °F 68.0 °F 100% 29.92 in 5.0 mi Calm Calm - 0.45 in Rain , Thunderstorm Light Rain
3:15 AM 68.0 °F 68.0 °F 100% 29.91 in 4.0 mi Calm Calm - N/A Rain Light Rain
3:35 AM 68.0 °F 68.0 °F 100% 29.90 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
3:55 AM 68.0 °F 68.0 °F 100% 29.89 in 10.0 mi Calm Calm - N/A   Overcast
4:15 AM 68.0 °F 68.0 °F 100% 29.90 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
4:35 AM 68.0 °F 68.0 °F 100% 29.92 in 7.0 mi Calm Calm - N/A Rain Light Rain
4:55 AM 68.0 °F 68.0 °F 100% 29.90 in 5.0 mi Calm Calm - N/A Rain Light Rain
5:15 AM 68.0 °F 68.0 °F 100% 29.90 in 5.0 mi Calm Calm - N/A Rain Light Rain
5:35 AM 68.0 °F 68.0 °F 100% 29.90 in 5.0 mi Calm Calm - N/A Rain Light Rain
5:55 AM 68.0 °F 68.0 °F 100% 29.91 in 6.0 mi Calm Calm - N/A Rain Light Rain
6:15 AM 68.0 °F 68.0 °F 100% 29.90 in 8.0 mi Calm Calm - N/A Rain Light Rain
6:35 AM 68.0 °F 68.0 °F 100% 29.90 in 10.0 mi Calm Calm - N/A   Overcast
6:55 AM 68.0 °F 68.0 °F 100% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
7:15 AM 68.0 °F 68.0 °F 100% 29.92 in 10.0 mi Calm Calm - N/A   Overcast
7:35 AM 68.0 °F 68.0 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
7:55 AM 68.0 °F 68.0 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
8:15 AM 68.0 °F 68.0 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
8:35 AM 68.0 °F 68.0 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:55 AM 68.0 °F 68.0 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 68.0 °F 68.0 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:35 AM 69.8 °F 69.8 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
9:55 AM 69.8 °F 68.0 °F 94% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
10:15 AM 69.8 °F 68.0 °F 94% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
10:35 AM 69.8 °F 68.0 °F 94% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
10:55 AM 69.8 °F 68.0 °F 94% 29.93 in 8.0 mi Calm Calm - N/A Rain Light Rain
11:15 AM 69.8 °F 68.0 °F 94% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
11:35 AM 68.0 °F 68.0 °F 100% 29.93 in 5.0 mi Calm Calm - N/A   Overcast
11:55 AM 68.0 °F 68.0 °F 100% 29.93 in 6.0 mi Calm Calm - N/A   Overcast
12:15 PM 69.8 °F 69.8 °F 100% 29.92 in 10.0 mi Calm Calm - N/A   Overcast
12:35 PM 69.8 °F 68.0 °F 94% 29.92 in 9.0 mi Calm Calm - N/A   Overcast
12:55 PM 69.8 °F 66.2 °F 88% 29.92 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
1:15 PM 69.8 °F 66.2 °F 88% 29.93 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:35 PM 68.0 °F 66.2 °F 94% 29.92 in 10.0 mi Calm Calm - N/A   Overcast
1:55 PM 68.0 °F 64.4 °F 88% 29.92 in 10.0 mi Calm Calm - N/A   Overcast
2:15 PM 68.0 °F 64.4 °F 88% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
2:35 PM 68.0 °F 64.4 °F 88% 29.91 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:55 PM 69.8 °F 64.4 °F 83% 29.91 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:15 PM 71.6 °F 62.6 °F 73% 29.90 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:35 PM 71.6 °F 59.0 °F 64% 29.89 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:55 PM 71.6 °F 59.0 °F 64% 29.89 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:15 PM 71.6 °F 59.0 °F 64% 29.89 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:35 PM 71.6 °F 60.8 °F 69% 29.89 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:55 PM 69.8 °F 59.0 °F 68% 29.89 in 10.0 mi Calm Calm - N/A   Clear
5:15 PM 69.8 °F 59.0 °F 68% 29.89 in 10.0 mi Calm Calm - N/A   Clear
5:35 PM 68.0 °F 59.0 °F 73% 29.90 in 10.0 mi Calm Calm - N/A   Clear
5:55 PM 68.0 °F 59.0 °F 73% 29.89 in 10.0 mi Calm Calm - N/A   Clear
6:15 PM 68.0 °F 59.0 °F 73% 29.90 in 10.0 mi Calm Calm - N/A   Clear
6:35 PM 68.0 °F 59.0 °F 73% 29.89 in 10.0 mi Calm Calm - N/A   Clear
6:55 PM 66.2 °F 59.0 °F 78% 29.89 in 10.0 mi Calm Calm - N/A   Clear
7:15 PM 66.2 °F 59.0 °F 78% 29.89 in 10.0 mi Calm Calm - N/A   Clear
7:35 PM 64.4 °F 62.6 °F 94% 29.89 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 62.6 °F 62.6 °F 100% 29.90 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 62.6 °F 60.8 °F 94% 29.91 in 10.0 mi Calm Calm - N/A   Clear
8:35 PM 62.6 °F 62.6 °F 100% 29.91 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 60.8 °F 60.8 °F 100% 29.92 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 60.8 °F 60.8 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 62.6 °F 57.2 °F 82% 29.93 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 60.8 °F 55.4 °F 82% 29.93 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 60.8 °F 55.4 °F 82% 29.93 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 59.0 °F 57.2 °F 94% 29.93 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 59.0 °F 57.2 °F 94% 29.94 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 57.2 °F 57.2 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 57.2 °F 57.2 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 57.2 °F 55.4 °F 94% 29.93 in 10.0 mi Calm Calm - N/A   Clear